Bagels. and. Cream. Cheese.
People can bring donuts, pastries, fudge, pie, cake, candy bars, caviar,

to the office, ...anything they want, and it does not bother me at all.
But if somebody brings in a bag of warm crusty bagels and a container of cream cheese, I'm useless. I don't care if I gain 10 lbs. in 5 minutes, I have to have one. Which I did. Yesterday. (No, I didn't gain 10 lbs., but I ate a bagel.) A big one. And I loved every precious second of it.